SEATTLE – Monster Energy AMA Supercross, an FIM World Championship, returned to the West Coast for the 15th race of the season on Saturday night in front of a crowd of 53,862 inside Seattle’s CenturyLink Field. Team Honda Muscle Milk’s Justin Barcia posted a wire-to-wire performance to win his second career 450SX Class Main Event. Red Bull KTM’s Ken Roczen captured his third 250SX Class victory in four races in the Western Regional Championship’s return to competition.
Barcia raced to the Nuclear Cowboyz Holeshot Award to begin the 450SX Class Main Event, with MotoConcepts Racing’s Mike Alessi and Slaton Racing Honda’s Vince Friese in tow. Villopoto positioned himself in the top five, while a first-turn pileup claimed both Red Bull KTM’s Ryan Dungey and TwoTwo Motorsports Honda’s Chad Reed.